NDLI: Behavioral and Neurochemical Changes Induced by Repetitive Combined Treatments of Ketamine and Amphetamine in Mice

Content Provider	Springer Nature Link
Author	Lai, Chuan Ching Lee, Li Jen Yin, Hsiang Shu
Copyright Year	2014
Abstract	The combined abuse of recreational drugs such as ketamine (Ket) and amphetamine (Amph) should be seriously considered important social and health issues. Numerous studies have documented the behavioral and neurochemical changes associated with polydrug administration; however, most studies have only examined the acute effects. The consequences following chronic repetitive polydrug use are less studied. In the present study, intraperitoneal injections of saline, Amph (5 mg/kg), low dose Ket (LK, 10 mg/kg), high dose Ket (HK, 50 mg/kg), or Amph plus LK or HK (ALK or AHK) were conducted twice a day for three consecutive days, and one final treatment was administered on day 4. After seven total treatments, animal behaviors, including locomotion, stereotypy and ataxia, were examined in a novel open field. The expression of GAD$_{67}$ and dopamine (DA) levels were assessed in the striatum and motor-related cortices using immunohistochemistry and high-performance liquid chromatography. Drug-induced hyperactivities and Amph-mediated potentiation of Ket-triggered ataxia manifested after repeated drug treatments. A significant increase in the number of GAD$_{67}$-positive puncta in the striatum and motor-related cortices was observed, suggesting a neural adaptive change in the GABAergic system. Four hours after the final treatment, while the behavioral hyperactivities had ceased, considerable changes were still evident in the motor-related cortices, suggesting modulation to the DAergic system. Together, our results show the interactive effects of these two drugs in behavioral and neurochemical aspects and neural adaptive changes in the GABAergic and DAergic systems.
Starting Page	2180
Ending Page	2188
Page Count	9
File Format	PDF
ISSN	03643190
Journal	Neurochemical Research
Volume Number	39
Issue Number	11
e-ISSN	15736903
Language	English
Publisher	Springer US
Publisher Date	2014-08-19
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Drug abuse Animal model Hyperactivity GABAergic system Dopaminergic system Neurosciences Neurochemistry Biochemistry Cell Biology Neurology
Content Type	Text
Resource Type	Article
Subject	Medicine Biochemistry Cellular and Molecular Neuroscience

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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